Exciton annihilation versus excited state absorption and stimulated emission effects in laser studies of fluorescence quenching of chlorophyll in vitro and in vivo

Nicholas Geacintov, D. Husiak, T. Kolubayev, J. Breton, A. J. Campillo, S. L. Shapiro, K. R. Winn, P. K. Woodbridge

Research output: Contribution to journalArticle

Abstract

The suggestion made by Hindman et al. that the decrease in fluorescence yield of chrorophyll a in vivo as a function of laser pulse intensity may be due to stimulated emission and/or excited state absorption effects, is examined critically. It is concluded that the contributions of these effects in previous picosecond pulse experiments is negligible.

Original languageEnglish (US)
Pages (from-to)154-158
Number of pages5
JournalChemical Physics Letters
Volume66
Issue number1
DOIs
StatePublished - Sep 15 1979

Fingerprint

Stimulated emission
chlorophylls
Chlorophyll
stimulated emission
Excited states
Quenching
Laser pulses
Fluorescence
quenching
excitons
fluorescence
Lasers
picosecond pulses
excitation
lasers
suggestion
Experiments
pulses
LDS 751

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

Exciton annihilation versus excited state absorption and stimulated emission effects in laser studies of fluorescence quenching of chlorophyll in vitro and in vivo. / Geacintov, Nicholas; Husiak, D.; Kolubayev, T.; Breton, J.; Campillo, A. J.; Shapiro, S. L.; Winn, K. R.; Woodbridge, P. K.

In: Chemical Physics Letters, Vol. 66, No. 1, 15.09.1979, p. 154-158.

Research output: Contribution to journalArticle

Geacintov, Nicholas ; Husiak, D. ; Kolubayev, T. ; Breton, J. ; Campillo, A. J. ; Shapiro, S. L. ; Winn, K. R. ; Woodbridge, P. K. / Exciton annihilation versus excited state absorption and stimulated emission effects in laser studies of fluorescence quenching of chlorophyll in vitro and in vivo. In: Chemical Physics Letters. 1979 ; Vol. 66, No. 1. pp. 154-158.
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